178 DISCOGLOSSIDiE. 



with tlie burrowing habits of this species, and the 

 differences noticed between this species and A. 

 ohstetricans are merely of degree. 



Measceembnts op Skeleton (in millimetres). 



? 



Length of skull . . . . .12 



Width of skull . _ .16 



Least interorbital width . . 3 



Dorsal vertebral column . . 12 



Urostyle ... .10 



Humerus . . 9 



Radius-ulna . 6'5 



Manus ... 8-5 



Pelvis . . .16 



Femur . . 12 



Tibia . 11 



Tarsus . . . 7'5 

 Pes . .... 12 



Habits. — This species is a burrower in sandy locali- 

 ties, digging by means of the outer edge of the hands. 

 In accordance with these habits its lungs are more 

 developed than in the allied species. Bosca having 

 found the male carrying the eggs, in April, there is no 

 doubt the breeding habits are much the same as in 

 A. ohstetricans, although the pairing has not yet 

 been actually observed. The tadpole is to be found 

 all the year round. 



Tadpole (PL I, fig. 6). — I am not able to detect any 

 character by which this tadpole may be surely distin- 

 guished from that of A. ohstetricans. The spots on the 

 tail are, however, smaller, more crowded, and forming 

 vermiculations on the muscular portion, the space oc- 

 cupied by the lateral groove being usually free from 

 spots. 



Length of body, 20 mm. ; width of body, 16 mm. ; 

 tail, 42 mm. ; depth of tail, 14. 



Habitat. — Spain (Aragon, New Castillo, Estrema- 

 dura) and Portugal (Douro, Beira, and Alemtejo). 



The specimen figured on PI. VIII is a female, one of 

 the types from Spain, preserved in M. Lataste's col- 

 lection. 



